Originally Posted by
jamie's
if its had a pressure test and didnt show anything up,
but loses water when running then it could be the head gasket blown between cylinder and water jacket,
get garage to do a sniff test on it,
its a small cylinder that goes over the rad cap,
filled with liquid, it changes colour if theres gases in it from the combustion chambers,
thats the way to tell for certain
A sniff test is done BEFORE removing the rad cap, using a mot exhaust gas probe to immediately put into the air space in the tank, it does NOT come into contact with water/coolant.
The test kits that detect the gasses by colour change have nothing to do with sniffing.
HG on these is very easy, might as well do belt/tensioner at same time.
tabetha